Update project files

tests/testsuite/test-append/Makefile.og

tests/testsuite/test-append/dataview_ada.gpr

tests/testsuite/test-append/dataview_c.gpr

tests/testsuite/test-in-expression/Makefile.og

tests/testsuite/test-in-expression/dataview_ada.gpr

tests/testsuite/test-in-expression/dataview_c.gpr

tests/testsuite/test-newtype/Makefile.og

tests/testsuite/test-newtype/dataview_ada.gpr

tests/testsuite/test-newtype/dataview_c.gpr

tests/testsuite/test-standalone/Makefile.og

tests/testsuite/test-standalone/dataview_ada.gpr

tests/testsuite/test-substrings2/Makefile.function2

tests/testsuite/test-substrings2/dataview_ada.gpr

tests/testsuite/test-substrings2/dataview_c.gpr

tests/testsuite/test-substrings2/function2.gpr